Home / 1,972.72-2,722.35-1,076.46

Finding the Fourth Proportional to 1,972.72, 2,722.35 and 1,076.46

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Solution

The fourth proportional to 1,972.72, 2,722.35 and 1,076.46 is: 1,485.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.72 : 2,722.35 = 1,076.46 : x
  2. Step 2: Convert to fraction form
    1,972.72/2,722.35 = 1,076.46/x
  3. Step 3: Cross multiply
    1,972.72x = 2,722.35 × 1,076.46
  4. Step 4: Simplify right side
    1,972.72x = 2,930,500.88
  5. Step 5: Solve for x
    x = 2,930,500.88/1,972.72
  6. Step 6: Final answer
    x = 1,485.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.